WO2006106751A1 - 内燃機関の吸気装置 - Google Patents

内燃機関の吸気装置 Download PDF

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Publication number
WO2006106751A1
WO2006106751A1 PCT/JP2006/306503 JP2006306503W WO2006106751A1 WO 2006106751 A1 WO2006106751 A1 WO 2006106751A1 JP 2006306503 W JP2006306503 W JP 2006306503W WO 2006106751 A1 WO2006106751 A1 WO 2006106751A1
Authority
WO
WIPO (PCT)
Prior art keywords
intake
intake passage
partition plate
passage
hole
Prior art date
Application number
PCT/JP2006/306503
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Kazuyoshi Abe
Daisuke Uchida
Mitsumasa Yamagata
Akira Nakawatase
Akio Yoshimatsu
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to JP2007512801A priority Critical patent/JP4591506B2/ja
Priority to EP06730451.9A priority patent/EP1865168B1/de
Priority to US11/887,277 priority patent/US7762229B2/en
Publication of WO2006106751A1 publication Critical patent/WO2006106751A1/ja

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • F02B31/06Movable means, e.g. butterfly valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00Modifying induction systems for imparting a rotation to the charge in the cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F1/42Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • F02F1/4242Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels with a partition wall inside the channel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M29/00Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/16Indirect injection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/48Tumble motion in gas movement in cylinder
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Definitions

  • the present invention relates to an intake device for an internal combustion engine that controls an intake flow by arranging a partition plate in an intake pipe.
  • Patent Document 1 disposes a tumble passage and a control passage by arranging a partition plate (also referred to as a partition wall or a partition wall) along the longitudinal direction inside the intake pipe.
  • An intake flow control valve that can be freely opened and closed is arranged on the control passage side, and left and right bulkheads are provided on the tumble passage side to stratify the tumble flow.
  • Patent Document 2 discloses an intake device using a partition plate in which a portion where the injected fuel collides is at least in a communicating porous shape.
  • Patent Document 3 discloses an intake device in which an intake control valve is disposed upstream of a partition wall that divides an intake port into two passages, and a slit-like communication passage is provided in a partition wall. The communication path is provided on the upstream end side of the partition wall so as to face a local low-pressure region generated on the downstream side when the intake control valve is closed.
  • the lower second passage when generating a tumble flow, the lower second passage is closed by an intake control valve, and the intake flow is caused to flow through the upper first passage. At this time, an intake flow taken from the second passage to the first passage is generated in the communication passage to enhance the tumble flow.
  • Patent Document 1 Japanese Patent Laid-Open No. 6-159079
  • Patent Document 2 JP-A-5-209582
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2004-124836
  • FIG. 8 (A) schematically shows the state of the intake device 100 at this time.
  • the inside of the intake pipe 103 is divided into a tumble passage 105 and a control passage 106 by a partition plate 104.
  • FIG. 8A shows a state in which the intake flow control valve 110 is rotated to close the control passage 106 side and a strong tumble flow is generated in the tumble passage 105.
  • a part of the intake air flow after passing through the partition plate 104 may become a strong eddy current EC at the lower end.
  • This vortex EC flows backward through the control passage 106 and causes fuel FU to adhere to the lower surface of the partition plate 104 in the form of droplets. Further, the fuel FU may adhere to the lower surface of the partition plate 104 due to blow-back when an intake valve (not shown) above the cylinder is opened.
  • the fuel FU that has flowed back or blown back remains in the lower surface of the partition plate 104 or in the recessed portion of the periphery.
  • the intake flow control valve 110 is switched to open (particularly fully open) with the injected fuel staying on the control passage 106 side as described above, the droplet-like fuel FU is burned as shown in FIG. 8 (B).
  • the air-fuel ratio (AZF) will suddenly become rich because it will flow into the room at once. Since this change is sudden, it is extremely difficult to control the air-fuel ratio. This reduces the combustion efficiency of the internal combustion engine and worsens the emissions.
  • the partition plate of the intake device disclosed in Patent Document 2 is formed of a continuous porous material in which the portion where the injected fuel collides is concave and convex and the front and back are communicated. It is also proposed to use a foam metal material as such a continuous porous material.
  • a continuous porous material if the inside of the intake pipe is partitioned with a continuous porous material, the tumble passage and the control passage are in a wide range of communication, and the effect of providing the partition plate is reduced. Therefore, it is difficult for this intake device to form a strong tumble flow on the tumble passage side.
  • this intake system proposes a technology that promotes the vaporization and atomization of fuel injected by the fuel injector, and does not deal with the fuel adhering to the lower surface of the partition plate due to the reverse flow of the intake flow as described above. .
  • the intake device disclosed in Patent Document 3 communicates intake air when forming a tumble flow. It is taken into the 1st passage from the 2nd passage via a way. At this time, the intake air flows back (backward) from the bottom to the top in the second passage. Since the injected fuel flows back along with the recirculation, the fuel stays on the lower surface and the peripheral portion of the partition wall as in the apparatus of Patent Document 1 described above. In particular, since the communication passage is provided at the upstream end of the partition wall so as to face the low pressure region generated when the intake control valve is closed, the fuel tends to adhere to the entire lower surface of the partition wall. In addition, the fuel may flow back to a position close to the intake control valve and may stay in the indented portion of the circumference. Therefore, an internal combustion engine that employs such an intake device is concerned with a decrease in combustion efficiency and a bad emission.
  • an object of the present invention is to prevent the intake flow from recirculating to the periphery of the intake control valve, suppress fuel adhering to the lower surface of the partition plate, and improve combustion efficiency and emission. It is an object to provide an air intake device that can be improved.
  • the above object is to provide a partition plate in the intake pipe along the longitudinal direction, and the interior is divided into a first intake passage that is an upper passage of the intake pipe and a second intake passage that is a lower passage of the intake pipe.
  • the intake device for an internal combustion engine that is divided and includes an intake control valve that opens and closes the second intake passage
  • the partition plate communicates the first intake passage and the second intake passage, and the lower surface of the partition plate
  • the partition plate since the partition plate has a plurality of holes communicating the first intake passage and the second intake passage, when a strong intake flow (tumble flow) flows through the first intake passage, 2 The airflow directed from the intake passage to the first intake passage is generated in the hole, so that the fuel adhering to the partition plate can be sucked out. As a result, it is possible to suppress a situation in which the fuel droplets suddenly flow into the internal combustion engine, and thus it is possible to provide an intake device that can improve combustion efficiency and emissions.
  • the opening position of the hole on the first intake passage side in the intake air flow direction may be downstream of the opening position of the hole on the second intake passage side. Further, the opening position of the hole on the first intake passage side may be upstream of the opening position of the hole on the second intake passage side in the intake flow direction. [0012] Further, the downstream end portion of the hole on the second intake passage side may be downstream of the downstream end portion of the hole on the first intake passage side in the direction of the intake air flow. Good.
  • an opening diameter of the hole formed on the first intake passage side is smaller than an opening diameter of the hole formed on the second intake passage side.
  • the hole has a taper-shaped structure in which the diameter is increased from the first intake passage side toward the second intake passage side.
  • the hole may adopt a structure provided on the downstream side of the partition plate.
  • the intake flow is prevented from flowing back to the periphery of the intake control valve, the fuel adhering to the lower surface of the partition plate is suppressed, and the combustion efficiency is improved and the emission is improved. It is possible to provide an intake device that can be achieved.
  • FIG. 1 is a diagram showing an intake device according to Embodiment 1
  • (A) is a diagram showing the overall configuration of the intake device
  • (B) is an enlarged view of the inside of CR in (A). It is a figure.
  • FIG. 2 (A) is a plan view of the partition plate.
  • (B) is an enlarged view of one of the holes shown in FIG. 1 (B).
  • (C) is a diagram showing an example of holes that uniformly expand in diameter.
  • FIG. 3 is a diagram showing Example 2.
  • FIG. 4 is a diagram showing Example 3.
  • FIG. 5 is a diagram showing Example 4.
  • FIG. 6 is a diagram showing an overall configuration of an intake device according to a modification.
  • FIG. 7 is a view showing another arrangement example of holes provided in the partition plate.
  • FIG. 8 is a view showing a conventional intake device.
  • FIG. 1 is a view showing an intake device 1 according to the first embodiment.
  • FIG. 1 (A) is a diagram showing the overall configuration of the intake device 1
  • FIG. 1 (B) is an enlarged view of the inside of the CR in (A).
  • the intake device 1 is arranged at a portion connecting a cylinder side of an internal combustion engine (not shown) and the intake bear-hold.
  • the lower end 2 is the cylinder side of the intake device 1.
  • the intake air flow GS flows from the intake bear-hold side toward the cylinder as shown in the figure.
  • the intake pipe of the intake device is often formed in the cylinder head of the internal combustion engine, but the intake device according to the present invention is not limited to such a form.
  • the intake pipe may be a part of the intake bear-hold or may exist as an independent pipe. The embodiment described below will be described without particularly limiting the place where the intake pipe is provided.
  • a partition plate 4A is disposed along the longitudinal direction.
  • the inside of the intake pipe 3 is divided into a first intake passage 5 as an upper passage and a second intake passage 6 as a lower passage by the partition plate 4A.
  • an injector mounting portion 7 is formed so as to protrude outward, and fuel is injected into the intake pipe 3 from the tip 8a of the indicator 8 inserted into the mounting portion 7. The Therefore, the intake air flow GS after this becomes an air-fuel mixture containing fuel.
  • An on-off valve 10 is arranged as an intake control valve on the upstream side (intake bear-hold side) from the partition plate 4A.
  • the on-off valve 10 rotates around a support shaft 15 provided on the inner wall of the intake pipe 3.
  • a support shaft 15 is disposed on the wall surface on the second intake passage 6 side. This support shaft 15 is supported by a bearing 16. Further, the rotational force from the actuator 17 is transmitted to the support shaft 15.
  • the actuator 17 is driven by an ECU (Electronic Control Unit) 18.
  • the ECU 18 may also be used as an ECU that controls an internal combustion engine (not shown). In this case, the opening / closing valve 10 can be moved to a desired position by controlling the actuator 17 in accordance with the state of the internal combustion engine.
  • FIG. 1 (A) when the on-off valve 10 forms a state in which the second intake passage 6 is closed and only the first intake passage 5 is opened, the first intake passage is more than in the fully open state. A strong tumble flow can be formed in 5.
  • the state shown in FIG. 1 (A) is called a half-open state, A state in which the opening / closing valve 10 is rotated to be parallel to the wall surface of the intake pipe 3 and the first intake passage 5 and the second intake passage 6 are opened is referred to as a fully open state.
  • the first intake passage 5 is a tumble passage
  • the second intake passage 6 is a control passage.
  • the on-off valve 10 is formed large so that the intake air flow in the first intake passage 5 can also be controlled, but may be formed small so as to control only the intake flow into the second intake passage 6.
  • FIG. 1 (B) shows that the cross-sectional shape of the hole 9 formed in the partition plate 4A can be confirmed. Further, in this figure, the behavior of the fuel FU adhering to the lower surface of the partition plate 4A due to the backflowed intake air flow CGS is schematically shown.
  • a plurality of holes 9 are formed in the partition plate 4A. The plurality of holes 9 are formed to communicate the first intake passage 5 and the second intake passage 6. The hole 9 formed in the cutting plate 4A is formed so that the opening diameter of the second intake passage 6 is larger than that of the first intake passage 5.
  • FIG. 2 (A) is a plan view of the partition plate 4A (a top view as viewed from the first intake passage 5 side).
  • the solid line shows the opening 9Ha of the hole 9 formed on the first intake passage 5 side
  • the dotted line shows the opening 9Hb of the hole 9 formed on the second intake passage 6 side.
  • FIG. 2 (B) is a further enlarged view of one of the holes 9 shown in FIG. 1 (B). From these figures, it can be confirmed that the opening diameter on the second intake passage 6 side is formed to be larger than the opening diameter on the first intake passage 5 side. If the opening of the hole on the lower surface side of the partition plate 4A is formed large in this way, the fuel FU attached to the lower surface of the partition plate 4A can be easily guided into the hole 9.
  • the opening on the first intake passage 5 side is made small in this way, the intake flow GS will not flow easily from the first intake passage 5 side to the second intake passage 6 side, so the tumble ratio is not lowered. Fuel FU can be sucked out to the first intake passage 5 side.
  • the downstream end 92 of the hole 9 on the second intake passage 6 side in the direction of the intake flow GS is more than the downstream end 91 on the first intake passage 5 side. Is also located downstream.
  • the inner wall 9TE of the hole 9 it is preferable to form the inner wall 9TE of the hole 9 in a tapered shape as shown in the figure, since the fuel that has entered can be smoothly guided to the opposite side.
  • the hole shape (opening shape) on the first intake passage 5 side and the hole shape of the second intake passage 6 are circular, and the second intake passage 6 side Shift the downstream end 92 to the downstream side.
  • the present invention is not limited to this.
  • the hole 9 may have an elliptical shape or a slit shape.
  • the first intake passage 5 side may have a circular shape
  • the second intake passage 6 side may have an elliptical shape.
  • the hole 9 may have a tapered shape in which the diameter is uniformly increased from the first intake passage 5 side to the second intake passage 6 side.
  • the downstream end 92 whose opening area on the second intake passage 6 side is larger than the first intake passage 5 side is the downstream end portion on the first intake passage 5 side. It is formed to be downstream from 91.
  • the partition plate 4A is preferably a flat plate member. As such a partition plate 4A, for example, a metal plate having a predetermined thickness and a smooth surface can be used. If a hole is drilled at a desired position on this metal plate to form a plurality of tapered holes 9, the partition plate 4A can be obtained. If the partition plate 4A is flat, the pressure loss can be reduced, so that the intake air flowing in the vicinity can flow smoothly.
  • the intake device 1 of the first embodiment described above when the intake flow GS is flown in the half-open state shown in Fig. 1 (A), a strong flow is generated on the first intake passage 5 side.
  • the intake passage 5 has a lower pressure than the second intake passage 6.
  • the fuel FU adhering to the lower surface of the partition plate 4A passes through the hole 9 (the first intake passage). 5 side) will be sucked out.
  • the fuel FU sucked into and discharged from the first intake passage 5 side is transported toward the cylinder again on the strong intake flow on the first intake passage 5 side.
  • the downstream end 92 that increases the opening area of the hole on the second intake passage 6 side is located downstream of the downstream end 91 on the first intake passage 5 side.
  • the fuel FU adhering to the lower surface can be efficiently sucked upward.
  • the intake device 1 of the first embodiment the fuel adhering to the lower surface of the partition plate 4A can be sucked out to the upper surface side and returned to the intake air flow. It is possible to suppress the fuel from staying on the second intake passage 6 side.
  • the partition plate 4A of the intake device 1 is a first intake passage that is a force tumble passage that is formed by drilling a metal plate or the like to partially communicate the first intake passage 5 and the second intake passage 6. Hole 9 is arranged as long as the tumble flow generated in 5 is not weakened. Therefore, the intake device 1 can improve the combustion efficiency and emission of the internal combustion engine.
  • the intake device 1 stabilizes AZF, the torque fluctuation of the internal combustion engine is suppressed and a stable output is achieved. Can be obtained.
  • the first intake passage 5 It is possible to urge the intake air flowing through the upper surface of the intake pipe 3. As a result, the tumble ratio can be increased, and as a secondary effect of providing the holes 9, the fuel of the internal combustion engine can be further improved.
  • FIG. 3 is a view showing Example 2 in the case where the partition plate used in the intake device 1 is another partition plate 4B.
  • 3A is a plan view of the partition plate 4B
  • FIG. 3B is a side view.
  • This cutting plate 4B has a hole 9 formed substantially perpendicular to the direction of flow of the intake air flow GS.
  • the opening 9Ha on the first intake passage 5 side and the opening 9Hb on the second intake passage 6 side are substantially the same, and the hole diameters are also substantially the same.
  • the intake device 1 Even in the intake device 1 that employs the partition plate 4B provided with the simple-shaped hole 9 as described above, the fuel adhering to the lower surface can be sucked out to the upper surface side and returned to the intake air flow. It is possible to suppress the accumulation of fuel. Therefore, the intake device 1 can also improve the combustion efficiency and the emission of the internal combustion engine, and can obtain a stable output by suppressing the torque fluctuation of the internal combustion engine.
  • FIG. 4 is a diagram showing Example 3 in the case where the partition plate used in the intake device 1 is another partition plate 4C.
  • 4A is a plan view of the partition plate 4C
  • FIG. 4B is a side view thereof.
  • the solid line indicates the opening 9Ha of the hole 9 formed on the first intake passage 5 side
  • the dotted line indicates the opening 9Hb of the hole 9 formed on the second intake passage 6 side.
  • the partition plate 4C has a hole 9 so that the opening position on the first intake passage 5 side is on the downstream side of the second intake passage 6 side in the direction in which the intake flow GS flows. Further, the hole diameters of the holes 9 are substantially the same.
  • the intake flow is difficult to flow to the first intake passage 5 force and the second intake passage 6 in the half-open state, so that a strong tumble flow can be secured on the first intake passage 5 side.
  • the fuel adhering to the lower surface of the partition plate 4C can be sucked out to the upper surface side. Therefore, the intake device 1 adopting this partition plate 4C is also used in the combustion of the internal combustion engine. Increase efficiency and emissions.
  • FIG. 5 is a view showing Example 4 in the case where the partition plate used in the intake device 1 is another partition plate 4D.
  • FIG. 5 (A) is a plan view of the partition plate 4C
  • FIG. 5 (B) is a side sectional view.
  • the solid line shows the opening 9Ha of the hole 9 formed on the first intake passage 5 side
  • the dotted line shows the opening 9Hb of the hole 9 formed in the second intake passage 6.
  • the partition plate 4D is formed with a hole 9 so that the hole position on the second intake passage 6 side is downstream of the first intake passage 5 side in the direction in which the intake flow GS flows. Further, the hole diameters of the holes 9 are substantially the same.
  • the intake device 1 employing this partition plate 4D can also improve the combustion efficiency and emission of the internal combustion engine.
  • FIG. 6 is a diagram showing an overall configuration of an intake device 40 according to a modification.
  • the intake device 40 includes a partition plate 41 in which a heater 42 is embedded.
  • the partition plate 41 provided with the heater 42 as a heating means may be employed to promote the vaporization of the attached fuel.
  • the intake device 40 controls the energization of the heater 42 by the ECU 18 so that there is no fuel adhering to the lower surface of the cutting plate 41 and the on-off valve 10 is switched to open.
  • FIG. 6 shows a structural example in which a heater 42 is provided on the partition plate 41, which has a hole. However, a structure in which a heater is further provided on the partition plate having the holes exemplified in Examples 1 to 4 is adopted. Use it.
  • holes having various shapes are formed in the partition plate 4 (4A to 4D).
  • An example of the case where 9s are arranged substantially equally will be described.
  • the hole 9 is provided in the partition plate, even if reflux (back flow) occurs in the second intake passage 6, it can be gradually weakened by the suction effect (suction effect) provided with the hole 9. it can. Therefore, the fuel can be prevented from reaching the vicinity of the on-off valve 10 located upstream, so that the fuel does not stay in the recessed portion of the on-off valve 10. Therefore, if the valve becomes rich suddenly (temporarily) when the valve is fully opened, it is possible to prevent the occurrence of the depression.
  • FIG. 7 shows another arrangement example of the holes 9 provided in the partition plate 4.
  • FIG. 7 (A) shows an example in which the holes 9 are intensively arranged downstream of the center position CL of the partition plate 4.
  • the arrangement of the holes 9 shown in FIG. 7A can be applied to any of the partition plates 4A to 4D shown in the first to fourth embodiments. Therefore, in FIG. 7 (A), it is shown as the partition plate 4 without distinguishing A to D.
  • FIG. 7 (A) is a force illustrating the case where the hole 9 is arranged on the downstream side of the center position CL. It is not limited to.
  • the hole 9 may be disposed downstream of the position CLS at 2Z3 from the downstream.
  • the holes 9 are evenly arranged in the partition plate 4 as compared with the case where the holes 9 are arranged relatively downstream, it is sufficient. If designed in this way, it is possible to substantially narrow the reflux range closer to the downstream side than in the case of uniform arrangement. Therefore, as shown in FIG. 7B, a partition plate 4 having a structure in which the density of the holes 9 existing downstream from the center position CL is higher than that of the upstream side may be employed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lift Valve (AREA)
PCT/JP2006/306503 2005-04-01 2006-03-29 内燃機関の吸気装置 WO2006106751A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007512801A JP4591506B2 (ja) 2005-04-01 2006-03-29 内燃機関の吸気装置
EP06730451.9A EP1865168B1 (de) 2005-04-01 2006-03-29 Brennkraftmotoransaugvorrichtung
US11/887,277 US7762229B2 (en) 2005-04-01 2006-03-29 Intake system for internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-106250 2005-04-01
JP2005106250 2005-04-01

Publications (1)

Publication Number Publication Date
WO2006106751A1 true WO2006106751A1 (ja) 2006-10-12

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PCT/JP2006/306503 WO2006106751A1 (ja) 2005-04-01 2006-03-29 内燃機関の吸気装置

Country Status (6)

Country Link
US (1) US7762229B2 (de)
EP (1) EP1865168B1 (de)
JP (1) JP4591506B2 (de)
KR (1) KR100925134B1 (de)
CN (1) CN100572771C (de)
WO (1) WO2006106751A1 (de)

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DE102005050508A1 (de) * 2005-10-21 2007-04-26 Bayerische Motoren Werke Ag Zylinderkopf für eine Brennkraftmaschine
JP2013050048A (ja) * 2011-08-30 2013-03-14 Toshihiko Yamamoto エンジンの吸気装置
JP2014134197A (ja) * 2013-01-12 2014-07-24 Toshihiko Yamamoto エンジンの吸気装置
JP2019199848A (ja) * 2018-05-17 2019-11-21 株式会社Subaru 内燃機関の吸気装置
JP2021032126A (ja) * 2019-08-23 2021-03-01 株式会社Subaru 内燃機関の吸気流制御装置
US20210381423A1 (en) * 2020-06-03 2021-12-09 Subaru Corporation Engine

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FR2914360B1 (fr) * 2007-04-02 2013-04-12 Renault Sas Conduit d'admission pour culasse de moteur thermique et procede de fabrication
FR2957121A1 (fr) * 2010-03-02 2011-09-09 Mann & Hummel Gmbh Dispositif d'admission d'air pour moteur a combustion interne
KR101198552B1 (ko) 2010-07-05 2012-11-06 권성환 자동차 엔진의 연소효율 최적화장치
US8997721B2 (en) * 2011-08-30 2015-04-07 Toshihiko Yamamoto Intake apparatus of engine
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JP6222167B2 (ja) 2015-05-25 2017-11-01 トヨタ自動車株式会社 内燃機関
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KR100925134B1 (ko) 2009-11-05
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KR20070108412A (ko) 2007-11-09
EP1865168A4 (de) 2013-01-16
EP1865168A1 (de) 2007-12-12
CN101155983A (zh) 2008-04-02
CN100572771C (zh) 2009-12-23
US20090272356A1 (en) 2009-11-05
EP1865168B1 (de) 2014-03-12
US7762229B2 (en) 2010-07-27

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